Pollination prevents abscission of ovary. Auxins from pollen grains lead to initial development of o...

a. Ovary wall - Pericarpb. Funicle - Stalk of the seedc. Integuments - Testa and tegmen

Banana because it is seedless.

By Wind(i) Pollen grains are dry, light, produced in large quantity.(ii) Stigma is hairy and feather...

Emasculation followed by artificial pollination, i.e. Pollens of selected plants have to be dusted o...

Synergids have filiform apparatus at the micropylar end which guides pollen tube into the egg appara...

Zygote divides only after the formation of endosperm because endosperm nourishes the developing embr...

In a few species viability is lost with in a few months and in some, seeds remain viable for many ye...

Proembryo, globular, heart-shaped, mature embryo are the stages of embrogeny in a dicot embryo.

https://clay6.com/mpaimg/104_A.jpg

One of the male gamete fuses with the egg cell resulting in the formation of an embryo. The second m...

8 haploid nuclei and 7 haploid cells are present in the female gametophyte of angiosperms.

Pollen can cause allergies and bronchial afflictions to a few people. They are used as tablets and s...

Pollen grains are chemically made up of sporopollenin which is highly resistant to chemicals and oth...

There are three nuclei in the chalazal end : 1 egg cell and 2 synergids. Central cell has two nucle...

a - Pollen sacb - Pollen grainsc - Line of dehiscence d - Filament

We will understand whether the plant is self pollinated or cross pollinated and also get an idea abo...

Through plant tissue culture using meristem cultures.

Polar nuclei should fuse to form a secondary nucleus. This secondary nucleus will fuse with a male g...

Through anemophily or wind pollination, pollen grains are carried from distance and they land on the...

a. Double fertilization results in the formation of triploid endosperm which nourishes the growing e...

a. Verticellasterb. Pseudocarp

Incompatibility promotes cross-pollination preventing self pollination.

Embryo - 28Endosperm - 42

1. Pollination 2. Geitonogamy

A - Vacuoles B - NucelusDevelopment of pollen grain

Epidermis, Endothecium, Middle layers and Tapetum.

They have endosperm but has no residual endospem as endosperm is consumed during embryo development ...

Yes. They have resistant covering of sporopollenin which protects them from adverse conditions.

Antipodals will be haploid and endosperm is triploid.

Apomixis

Mucilagenous covering of pollen grain protect them from wetting.

A place where pollen are stored for future use is called a pollen bank.

Cotyledon of a monocot seed is scutellum.

Fruits that are formed without fertilization are called parthenocarpic fruits.

Vegetative cell and generative cell are the two cells.

From each pollen, one male gamete fuses with egg cell and the other with secondary nucleus resulting...

One

Triploid

Haploid

Pollen grain coming in contact with the stigma is a chance factor in maize as it is wind pollinated....

Pericarp + Tip cap= Bran

Pollen release and stigma receptivity are not synchronized to prevent self pollination.

Yes. In most of the plants, flowers emerge above the level of water and are pollinated by insects an...

Pollen baskets are special structures in bees for collecting pollen.

Cryopreservation in which the pollen grains are stored in liquid nitrogen at $-196^{\circ}C$.

Pollen grains it is seen. It is Sporopollenin.

By longitudinal introse, longitudinal extrose, by apical pores, by transverse splitting.

Entomophily

Yes, Malamacophily